The thickness and type of material of the duct pipe must be chosen depending on the PS and TS indicated on the rating plate to avoid collapse and ejec-
tions of material. The installer is in charge of adequate clamping to avoid warping, collapses or mechanical stress bearing on the safety valves themselves.
NB.: each valve must be connected to an independent exhaust pipe.
Tripping of the safety valve creates a danger zone near the exhaust where no device/structure should be present as it would modify the physical distribution
of flammable gas and make it unpredictable. See the diffuser cones below.
DE
Direction of emission
ZP
Danger zone
SVS
Safety valve exhaust
The exhausts of the safety valves must be channelled outside to open air in compliance with the requirements below. In particular, the exhaust of safety
valve channelling must be at least 3m above ground level.